At approximately 6:20 p.m. Saturday, Barton County Sheriff’s Office deputies were dispatched to a reported injury accident on the Barton/Russell county line on the Susank blacktop.

A 2012 Harley-Davidson operated by Gregory Allison, 60, rural Great Bend, was westbound on the county line, according to a news release.

Investigation at the scene indicated Allison failed to negotiate the curve going south onto Susank Road. The motorcycle went into a skid, sliding over 100 feet. Allison was thrown from the bike, landing in the west ditch.

A helicopter was called to the scene, and Allison was transported by air ambulance to Wesley Medical Center in Wichita.

Deputies believe excess speed was a contributing factor. Allison’s condition is not known, the sheriff’s office said in the news release.